Prognostic value of CEA in postoperative monitoring of colorectal cancers

The prognostic value of CEA for the purposes of postoperative monitoring assessed in 45 patients with cancer of the colon and rectum. Values were obtained 1-36 months after surgery in all operable cases. Means were also evaluated statistically at various follow-up times. In patients who relapsed, values stayed significantly higher for up to 6 months after surgery than in those who did not. Cockran's method showed that the prognostic significance of this difference 6 months after surgery was p less than 0.05.